Prepare cake according to mix directions, adding the orange rind. While cake is baking in 2 (8-inch) greased and floured cake pans, prepare Cranberry Filling.
Combine cranberries, juice, and sugar, and boil for 10 minutes. Cool, then chill. Cool cake layers on a rack 10 minutes; remove from pans and finish cooling. Spread Cranberry Filling between layers. Prepare frosting mix according to directions, adding enough food coloring to make frosting a bright orange. Spread frosting on sides and top and decorate with Halloween candies.
